[Asp-190-Tyr mutation in the rhodopsin gene in a Spanish family with autosomic dominant pigmentary retinosis].
Medicina Clinica(2000)
摘要
Mutations in the rhodopsin cause of retinitis pigmentosa autosomal dominant (ADRP). We report a large family affected with ADRP. Analysis by denaturant gradient gel electrophoresis and direct DNA sequence detected an heterozygous G to T transversion in the exon 3 of the rhodopsin gene. This mutation damages a restriction site for Taq I enzyme and produces the change Asp-190-Tyr in rhodopsin. All carriers of the mutation show a regional RP phenotype. This mutation is responsible for the disease in this family.
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关键词
rhodopsin gene,autosomic dominant pigmentary retinosis,mutation
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